Coal feeder flashboard measuring device
By combining a flexible gate with an adjustable scraper seal, along with a laser displacement sensor and control system, the problem of inaccurate manual adjustment of the gate opening in coal feeder equipment has been solved, achieving high-precision measurement and automated control, thus improving production efficiency and safety.
Patent Information
- Application Number
- CN202520464699.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-17
AI Technical Summary
In coal mining enterprises, the adjustment of the gate opening in coal feeding equipment relies on manual observation, which leads to inaccurate production, waste of manpower and resources, and potential safety hazards.
By combining a flexible gate with an adjustable scraper seal, along with a laser displacement sensor and control system, high-precision measurement and automated control of the gate opening can be achieved.
It improves the sealing performance of the gate, reduces coal leakage and dust pollution, enhances operational efficiency and intelligence, and reduces manual intervention.
Smart Images

Figure CN223792238U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coal feeder technology, and in particular relates to a coal feeder gate measuring device. Background Technology
[0002] In the routine operation of coal feeding equipment in coal mines, the gate opening degree often requires workers to manually observe it on-site before reporting it to the gate operator for adjustment. This method is wasteful of manpower and resources, and the resulting data is inaccurate, making it impossible to guarantee accurate product quantities. Typically, when the coal feeder and its gate need to be opened, personnel must be dispatched to the site. The operator opens the gate, and the on-site personnel determine the product input by observing the gate opening. Once the gate opening reaches the expected level, the on-site personnel notify the operator via communication tools. Upon receiving the instruction, the operator adjusts the gate opening (larger or smaller) until the appropriate position is achieved. During this process, because the gate opening degree is determined manually, it is difficult to guarantee the required manpower, resources, and time, severely impacting production quality and safety. It also represents a significant waste of human and financial resources. Increased production costs and safety risks. Utility Model Content
[0003] (I) Purpose of the utility model
[0004] In order to overcome the above shortcomings, the purpose of this utility model is to provide a coal feeder gate measuring device to solve the above technical problems.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, the technical solution provided in this application is as follows:
[0007] A gate measuring device for a coal feeder includes a gate frame, which includes an upper gate box and a lower gate support. The lower end of the gate box is provided with a gate slide opening, and the gate support is provided with a sliding rail. The gate is always slidably mounted on the sliding rail. An adjustable scraper seal is provided at the gate slide opening, and the adjustable scraper seal is spaced apart from both ends of the gate. The top of the gate extends into the gate box and is connected to a gate drive unit. A motion sensor is provided on the top of the gate.
[0008] Preferably, the gate support consists of two opposing support plates, which are installed at both ends of the gate box and form a discharge port between them. The opposing surfaces of the two support plates are provided with sliding rails, and the cross-section of the sliding rails is semi-circular.
[0009] Preferably, the gate is a flexible gate, and the material of the flexible gate is an elastic alloy.
[0010] Preferably, the adjustable scraper seal is divided into a left seal and a right seal. Both the left and right seals include a scraper moving seat and a scraper slidably disposed on the scraper moving seat. The scraper moves in a direction away from or towards the gate. A movable screw is rotatably mounted on the scraper. A movable screw seat is provided on the scraper moving seat. The movable screw is screwed to the movable screw seat. The end of the movable screw is connected to the rotating handle.
[0011] Preferably, the scraper and the gate are spaced apart, and the lower end of the scraper is inclined inward.
[0012] Preferably, the top of the gate extends into the gate box and connects with the gate fixing plate, and the width of the gate fixing plate is wider than the width of the gate slide.
[0013] Preferably, the gate fixing plate is connected to the gate screw seat of the gate drive unit, the gate screw is screwed into the gate screw seat, and the gate screw passes through the gate box and is connected to the gate drive motor.
[0014] Preferably, the motion sensor is a laser displacement sensor, which transmits data to the control system, which then controls the operation of the gate drive motor.
[0015] Beneficial effects:
[0016] This coal feeder gate measuring device significantly improves sealing performance by combining a flexible gate with an adjustable scraper seal, effectively reducing coal leakage and dust pollution. The integration of a laser displacement sensor with the control system enables high-precision measurement and automated control of the gate opening, improving operational efficiency, reducing manual intervention, and enhancing the level of intelligence. Attached Figure Description
[0017] Figure 1 This is a vertical cross-sectional view of the present invention;
[0018] Figure 2 This is a front view structural diagram according to one embodiment of the present utility model;
[0019] Figure 3 This is a horizontal cross-sectional view according to one embodiment of the present invention;
[0020] Figure 4 This is a structural diagram of the right sealing element according to one embodiment of the present utility model. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with specific embodiments and the appendix, provides further details. Figure 1-4 The present invention will be described in further detail below. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the present invention.
[0022] This utility model provides a gate measuring device for a coal feeder, including a gate frame, which includes a gate box 2 at the upper end and a gate support member at the lower end. The lower end of the gate box is provided with a gate sliding opening 11, and the gate support member is provided with a sliding rail 10, on which the gate is always slidably mounted.
[0023] An adjustable scraper seal 6 is provided at the gate slide 11, with a clearance between the adjustable scraper seal 6 and both ends of the gate. The top of the gate 7 extends into the gate housing 2 and connects to the gate drive unit, and a motion sensor 5 is provided on the top of the gate 7. This structural design allows the gate 7 to run smoothly on the sliding rail 10, while the adjustable scraper seal effectively reduces coal leakage and improves sealing performance. The motion sensor 5 provides technical support for accurate measurement of the gate.
[0024] The gate support consists of two opposing support plates 9, which are installed at both ends of the gate box 2, forming a discharge port 8 between them. A sliding rail 10 with a semi-circular cross-section is provided on the opposing surfaces of the two support plates 9. This design not only provides stable sliding support for the gate 7 but also reduces friction and jamming during gate operation through the semi-circular sliding rail, thus improving the operational stability of the equipment.
[0025] Gate 7 is a flexible gate made of an elastic alloy. This material allows the gate to better adapt to different operating conditions, reducing jamming caused by coal particles, while also improving its service life and sealing performance.
[0026] The adjustable scraper seal is divided into a left seal and a right seal. Both the left and right seals include a scraper moving seat 61 and a scraper slidably mounted on the scraper moving seat 61. The main scraper moving seat 61 is located at the bottom of the gate box. The scraper 65 moves either away from or towards the gate. A moving screw 64 is rotatably mounted on the scraper 65. A moving screw seat 63 is provided on the scraper moving seat 61, and the moving screw 64 is screwed to the moving screw seat 63. The end of the moving screw 64 is connected to the rotating handle 62. The scraper 65 is spaced apart from the gate 7, and the lower end of the scraper 65 is inclined inward to facilitate the cleaning of coal slag adhering to the gate. This adjustable scraper seal design allows for manual adjustment of the scraper position to reduce the gap when the scraper wears out after prolonged use, thus ensuring the airtightness of the gate box and preventing coal ash from entering and causing the motion sensor to be covered by ash, resulting in inaccurate measurements.
[0027] The top of the gate plate 7 extends into the gate plate housing 2 and connects to the gate plate fixing plate. The width of the gate plate fixing plate is wider than the width of the gate plate slide 11. The gate plate fixing plate is connected to the gate plate screw seat 4 of the gate plate drive unit. The gate plate screw 3 is screwed into the gate plate screw seat 4. The gate plate screw 3 passes through the gate plate housing 2 and connects to the gate plate drive motor 1. The gate plate drive motor 1 drives the gate plate screw 3 to rotate, thereby driving the gate plate.
[0028] Motion sensor 5 is a laser displacement sensor. This sensor transmits data to the control system, which then controls the operation of the gate drive motor. The application of the laser displacement sensor enables high-precision measurement of the gate opening and automated control of the gate drive motor through the control system, improving the operating efficiency and intelligence level of the coal feeder, eliminating the need for manual visual inspection based on experience.
[0029] During the operation of the coal feeder, the gate is raised and lowered by the drive motor of the gate drive unit. The drive motor drives the gate fixing plate through the gate screw, thereby realizing the up and down movement of the gate on the sliding track. The opening degree of the gate is monitored in real time by a laser displacement sensor installed on its top, and the sensor transmits the measured gate position data to the control system. The control system precisely controls the drive motor according to the preset control logic or the operator's instructions, thereby realizing the automatic adjustment of the gate opening degree.
[0030] During the sliding of the gate, the scraper of the adjustable scraper seal maintains an appropriate gap with the gate. By manually adjusting the rotating handle, the scraper can move away from or closer to the gate to adapt to different working conditions and optimize the sealing effect.
[0031] The flexible gate can adapt to the irregular shape of coal particles during operation, reducing equipment failures caused by coal jamming. Meanwhile, the semi-circular sliding track design of the gate support reduces friction during gate sliding, improving the stability of equipment operation.
[0032] This coal feeder gate measuring device significantly improves sealing performance by combining a flexible gate with an adjustable scraper seal, effectively reducing coal leakage and dust pollution. The integration of a laser displacement sensor with the control system enables high-precision measurement and automated control of the gate opening, improving operational efficiency, reducing manual intervention, and enhancing the level of intelligence.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A coal feeder gate measuring device, characterised in that, Including the shutter frame, the shutter frame includes the shutter box of upper end and the shutter support of lower end, the lower end of the shutter box is equipped with the shutter sliding port, the shutter support is equipped with the sliding rail, the shutter is always slidably arranged on the sliding rail, the adjustable scraper seal is arranged at the shutter sliding port, the adjustable scraper seal is arranged with the gap of both ends of the shutter, the top of the shutter extends into the shutter box and is connected with the shutter driving unit, and the top of the shutter is equipped with a movement sensor.
2. A measuring device for a gate of a coal feeder according to claim 1, characterized in that The shutter support is two oppositely arranged support plates, the two support plates are installed at both ends of the shutter box, the discharge port is formed between the two support plates, the opposite surfaces of the two support plates are provided with sliding rails, and the cross section of the sliding rail is semicircular.
3. A measuring device for a gate of a coal feeder according to claim 1, characterized in that The shutter is a flexible shutter, and the material of the flexible shutter is an elastic alloy.
4. A measuring device for a gate of a coal feeder according to claim 1, characterized in that The adjustable scraper seal is divided into a left seal and a right seal, the left seal and the right seal each include a scraper moving seat and a scraper slidably arranged on the scraper moving seat, the moving direction of the scraper is away from or close to the shutter, a moving lead screw is rotatably installed on the scraper, a moving lead screw seat is arranged on the scraper moving seat, the moving lead screw is screwed with the moving lead screw seat, and the end of the moving lead screw is connected with a rotating handle.
5. A measuring device for a gate of a coal feeder according to claim 4, characterised in that, The scraper is arranged with a gap between the shutter, and the lower end of the scraper is inwardly inclined.
6. A coal gate measuring device according to claim 1, wherein The top of the shutter extends into the shutter box and is connected with the shutter fixing plate, and the width of the shutter fixing plate is wider than the width of the shutter sliding port.
7. A measuring device for a gate of a coal feeder according to claim 6, characterised in that The shutter fixing plate is connected with the shutter lead screw seat of the shutter driving unit, the shutter lead screw is screwed in the shutter lead screw seat, and the shutter lead screw passes through the shutter box and is connected with the shutter driving motor.
8. A measuring device for a gate of a coal feeder according to claim 1, characterized in that The movement sensor is a laser displacement sensor, the laser displacement sensor transmits data to a control system, and the control system controls the operation of the shutter driving motor.